ProBoat's new 29" Mystic Brushless catamaran

[ecoovert]

Those blind nuts seem to be made of some pretty mild steel and they strip easily. I've had that problem in the firewalls of some RC airplanes.

If it was my boat, I think I'd try to make a small hole in the bulkhead under the motor just big enough so I could reach in with a pair of tweezers and hold a conventional nut in place below the stripped blind nut while I threaded a longer screw in from the top through the motor mount. Then you could use a small ignition wrench to hold the nut while you tightened the motor mount screw. (I just bought a set of tiny metric ignition wrenches -- they're handy for hobby use.) If you were worried about compromising the strength of the bulkhead by making the hole, you could always epoxy a plywood patch over it when you were finished. That would make it even more fun to remove the mount the next time...

Good luck with it,
desmobob

I like your idea desmobob. The only problem is finding a way to drill with onlyabout 1/4" to get the drill in. You see the bulkhead sets only about 1/2" above the hull and I would have to drill into the side of the bulkhead. I might have to drill in at an angle or better yet borrow my dads Dremmel and finish the job with a jewlwers file which I have a set of. I also have a set of Craftsman mini wrenches so I think your idea just may be the best solution. As to compromising the bulkhead I already added one of those water cooled motor mounts and removed the cooling plate from the front as I didn't need that. This holds the rear of the motor in place removing a lot of the stress from the bulkhead screws. In other words I have 4 screws holding my motor in place.

P.S. Super Glue holds the motor mount to the hull just fine. All I did was add a hard plastic strip between the 2 upright wood brackets that hold the rear motor mount in place. I superglued it all together and made it as a single unit and then superglued that in place using the gel form of superglue. This kind will bont to porouse surfaces. It's quick and a whole lot easier than fiberglassing it in. I think it's more solid as well.

[Derrick Davis]

ecovert,
Would you mind taking a couple pictures of your project? I'm interested to see it. Thanks.

[desmobob]

The only problem is finding a way to drill with onlyabout 1/4" to get the drill in. You see the bulkhead sets only about 1/2" above the hull and I would have to drill into the side of the bulkhead. I might have to drill in at an angle or better yet borrow my dads Dremmel and finish the job with a jewlwers file.

I'm guessing it would be easiest to "grind" the hole with a large burr bit on a Dremel rather than drill it. Although I do have a set of short twist drills with knurled knobs on the end that are made to be used by hand (from Tower Hobbies) that would likely work. You can probably even lay a regular old X-acto knife down in the hull and twirl it like a drill... the point of the blade will quickly go through the plywood bulkhead.

Good luck and keep us posted,
desmobob

PS - I have the Craftsman mini-wrenches too. I got them on eBay for cheap and they're handy!

[ecoovert]

Sure, I would like to but lately having just moved all the way across the country I still havn't located my laptop. It has the software I like to use for uploading photos; my work computer which I'm using here does not. I hope someday someone in the family unpacks a box with my laptop in it. I also used it to edit videos for youtube.

[ecoovert]

Thanks for your input. As it stands right now I put some Superglue on the screw and screwed it in pushing extra hard on the screw as I screwed it in. I wish I had waited for all the ideas you guys brought forth. If what I did doesn't hold I'll use one of your methods. You are right about those little Craftsman mini wrenches.

[roadrashracing]

Someone had one of these at the pond today, his had a plastic hatch, is this what they came with or is it something they changed?

[tiqueman]

That's what they come with

[ecoovert]

If your talking about the plastic hatch with the see trough windo, yes that's what they come with.

[ecoovert]

Here you go. I finally got some pictures with my camera and found that I was able to install them on my work computer.Miss Geico project 002.jpgMiss Geico project 010.jpgMiss Geico project 006.jpgMiss Geico project 012.jpgMiss Geico project 014.jpg

[ecoovert]

In case some of you would like to see my home made offset rudder bracket from another angle here it is. This simple setup works great. No more porpoising and it only cost maybe a couple of dollars to build. I must say I already had some 1/8" aluminum on hand.

Miss Geico project 019.jpgMiss Geico project 016.jpgMiss Geico project 015.jpgMiss Geico project 014.jpgMiss Geico project 013.jpg

[d.a.v.e]

What motor is that?

[ecoovert]

It's a Nemesis Gold 4082 in 2200kv configuration. Same thing as a Leopard 4082. This motor is rated at 4.66 horse power. Ofshore Electrics sells the Leopard version and Fine Design RC sells the gold version but Chris at finedesignrc.com sells his with the water jacket included. The water jackets run between $17 and $25 depending on where you get them. Chris sells the complete motor/water jacket package for $119.95. He also is great at talking you through your upgrades.

[d.a.v.e]

What kind of speed are you seeing out of this with that monster in it? Did he sell you the added motor mount it looks like you have as well?

[ecoovert]

Yes Chris sold me the package deal. That saved me about $10 as I would have paid about $17 for the jacket plus $110-$120 for the motor. The only thing that I considered was going ahead and ordering the Leopard jacket seperate as it would have added contrast as they are red. I think red and gold would have looked good together. But I did save money this way so I'm ok with that. I was getting about 65 out of my 4074 motor. With this motor adding another 1.4 horsepower I should be seeing around 80 depending on prop selection. With my x442 prop I should get mid 70s but if I were to install my x645 prop, well who knows.

[Derrick Davis]

Nicely done....thanks for putting up the pictures!